公开(公告)号：US11761283B2

公开(公告)日：2023-09-19

申请号：US17309231

申请日：2018-11-12

Applicant: SHENZHEN UNIVERSITY ,  SICHUAN UNIVERSITY

Inventor： Heping Xie ,  Ling Chen ,  Mingzhong Gao ,  Jun Guo ,  Zhilong Zhang ,  Zetian Zhang ,  Yiqiang Lu ,  Cong Li ,  Zhiqiang He

IPC: E21B25/02 ,  E21B25/08 ,  E21B25/12

CPC classification number: E21B25/08 ,  E21B25/12

Abstract: A core barrel sealing structure includes a core barrel, a drilling machine outer barrel, a chain mail-type flap valve and a trigger mechanism. The flap valve includes a valve seat and a chain mail-type valve flap. The trigger mechanism includes a trigger inner barrel and a trigger block. The trigger block is arranged in a through hole in a sidewall of the trigger inner barrel, and an inner wall of the drilling machine outer barrel is provided with a recessed opening adapted to the trigger block. When the core barrel is located in the valve seat, the valve flap is opened by 90° and is located between the trigger inner barrel and the drilling machine outer barrel. When the core barrel is lifted upwards, the valve flap returns to a top face of the valve seat to make sealing contact with a sealing face of a valve opening.

公开(公告)号：US2668037A

公开(公告)日：1954-02-02

申请号：US19274850

申请日：1950-10-28

Applicant: REED ROLLER BIT CO

Inventor： STOKES JOHN C

IPC: E21B25/12

CPC classification number: E21B25/12

公开(公告)号：US2499543A

公开(公告)日：1950-03-07

申请号：US69741446

申请日：1946-09-17

Applicant: TOWNSEND LAWRENCE E

Inventor： TOWNSEND LAWRENCE E

IPC: E21B25/12

CPC classification number: E21B25/12

公开(公告)号：US2205598A

公开(公告)日：1940-06-25

申请号：US24336138

申请日：1938-12-01

Applicant: INGERSOLL RAND CO

Inventor： FRANK MILLER

IPC: E21B25/12

CPC classification number: E21B25/12

公开(公告)号：US1825123A

公开(公告)日：1931-09-29

申请号：US39557229

申请日：1929-09-27

Applicant: H C SMITH MFG COMPANY

Inventor： PHIPPS JOHN T

IPC: E21B25/12

CPC classification number: E21B25/12

公开(公告)号：US1373492A

公开(公告)日：1921-04-05

申请号：US33813419

申请日：1919-11-14

Applicant: DODDS REDUS D

Inventor： DODDS REDUS D

IPC: E21B21/10 ,  E21B25/00 ,  E21B25/10 ,  E21B25/12

CPC classification number: E21B25/00 ,  E21B21/10 ,  E21B25/10 ,  E21B25/12

公开(公告)号：US4580643A

公开(公告)日：1986-04-08

申请号：US648959

申请日：1984-09-10

Applicant: Douglas G. Fox ,  Larry C. Greenhalgh

Inventor： Douglas G. Fox ,  Larry C. Greenhalgh

IPC: E21B25/12 ,  E21B25/00 ,  E21B25/02

CPC classification number: E21B25/00

Abstract: The longitudinal position of an inner barrel within a core barrel assembly can be adjusted and locked in the field without necessitating the disassembly of the cartridge cap assembly within the core barrel tool, and therefore without entailing loss of expensive rig time. The inner tube is coupled through a swivel assembly to a cartridge cap. The cartridge cap is threadedly coupled to the coring tool, and in particular to the outer tube. Thus, the cartridge cap is arranged and configured to be rotated, and thus longitudinally adjusted with respect to the outer tube. An upper portion of the cartridge cap is provided with a plurality of radially expanding fingers. A jam nut is disposed within a cylindrical array formed by the fingers, and is threadably engaged with the inside surface of the fingers. The jam nut has a frustoconical shape, and thus as the jam nut is advanced longitudinally with respect to the fingers, the fingers are urged outwardly, ultimately in a tight and locking contact with an interior surface of the coring tool. A hollow cylindrical wrench engages the core barrel to rotate it to the desired longitudinal position. A jam nut wrench is disposed through the hollow cylindrical wrench and is used to advance the jam nut downwardly in the fingers to expand the fingers and thus lock the longitudinal position of the cartridge cap.

Abstract translation: 内筒体在芯筒组件内的纵向位置可被调节和锁定在现场，而不需要将筒盖组件拆卸在芯筒工具内，因此不会导致昂贵的钻机时间的损失。 内管通过旋转组件联接到盒盖。 盒盖螺纹连接到取芯工具，特别是与外管连接。 因此，盒盖被布置和配置成旋转，并因此相对于外管纵向调节。 盒盖的上部设置有多个径向扩张的指状物。 锁定螺母设置在由指状物形成的圆柱形阵列内，并且与指状物的内表面螺纹接合。 阻塞螺母具有截头圆锥形状，因此当锁定螺母相对于手指纵向前进时，手指被向外推动，最终与取芯工具的内表面紧密地锁定接触。 中空的圆柱形扳手接合芯筒以将其旋转到期望的纵向位置。 锁紧螺母扳手通过中空圆柱形扳手设置，并用于将握持螺母向前推进手指以使手指膨胀并因此锁定墨盒帽的纵向位置。

公开(公告)号：US3428138A

公开(公告)日：1969-02-18

申请号：US3428138D

申请日：1967-03-22

Applicant: LONGYEAR CO E J

Inventor： CASPER RAY K ,  LINDELOF LEONARD A

IPC: E21B25/12 ,  E21B9/20 ,  E21B25/00

CPC classification number: E21B25/12

公开(公告)号：US2621897A

公开(公告)日：1952-12-16

申请号：US538948

申请日：1948-01-30

Applicant: BROWN CICERO C

Inventor： BROWN CICERO C

IPC: E21B25/02 ,  E21B25/12

CPC classification number: E21B25/02 ,  E21B25/12

公开(公告)号：US1756503A

公开(公告)日：1930-04-29

申请号：US25082928

申请日：1928-01-31

Applicant: BAKER OIL TOOLS INC

Inventor： BAKER REUBEN C

IPC: E21B25/00 ,  E21B25/12

CPC classification number: E21B25/00 ,  E21B25/12